Publicado: Jue, Febrero 07, 2019
Ciencia | Por Aurelio Ontiveros

Previous year was fourth hottest on record: outlook sizzling - United Nations

Previous year was fourth hottest on record: outlook sizzling - United Nations

While Australia just suffered through it's hottest January on record, around the world things aren't much better.

"The 20 warmest years on record have been in the past 22 years".

The British office along with NOAA, NASA and the World Meteorological Organization analyze global temperatures in slightly different ways, but they all came to the same conclusion Wednesday: 2018 was the fourth-warmest year on record behind 2016, 2015 and 2017.

The U.S. government's National Oceanic and Atmospheric Administration (NOAA) said 2018's average global temperature was 58.42 degrees Fahrenheit, or 14.69 Celsius.

Earth's long-term warming trend continued in 2018 as persistent warmth across large swaths of land and ocean resulted in the globe's fourth hottest year in NOAA's 139-year climate record.

The British Met Office, which also contributes data to the WMO, said temperatures could rise to 1.5C above pre-industrial times, for instance if a natural El Nino weather event adds a burst of heat.

The past five years have been the warmest in the modern record, the report said, and 2018's global temperatures were 1.5 degrees Fahrenheit, or 0.83 degrees Celsius, above the mean temperatures for 1951-1980.

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"Over the next five years there is a one-in-10 chance of one of those years breaking the [1.5C] threshold", Professor Adam Scaife of the Met Office told Reuters of the agency's medium-term forecasts.

"That is not saying the Paris Agreement is done for. but it's a worrying sign", he said.

Scientists with NASA and NOAA will discuss the Earth's 2018 global temperatures and climate conditions on February 6, 2018.

The warming trends are most evident in the Arctic, NASA said. The Paris pact responded to a 1992 United Nations treaty under which all governments agreed to avert "dangerous" man-made climate change.

A United Nations report a year ago said the world is likely to breach 1.5C sometime between 2030 and 2052 on current trends, triggering ever more heat waves, powerful storms, droughts, mudslides, extinctions and rising sea levels.

Patrick Verkooijen, head of the Global Center on Adaptation in the Netherlands, told Reuters that the WMO report showed "climate change is not a distant phenomenon but is here right now".

He called for more, greener investments, ranging from defences against rising seas to drought-resistant crops.

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